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Point Lynas Lighthouse
Point Lynas Lighthouse (2).jpg
The Lighthouse at Point Lynas

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Location Llaneilian
Coordinates 53°24′59″N 4°17′21″W / 53.416287°N 4.289198°W / 53.416287; -4.289198
Year first constructed 1766 (first)
Year first lit 1835 (current)
Automated 1989
Tower shape lantern at ground level attached to a square castellated tower
Markings / pattern white tower and lantern
Height 11 metres (36 ft)
Focal height 39 metres (128 ft)
Current lens 2nd Order catadioptric fixed
Intensity 89,900 candela
Range 18 nautical miles (33 km; 21 mi)
Characteristic Oc W 10s.
Fog signal blast every 45s. (ceased operation in 2012)
Admiralty number A5160
NGA number 5464
ARLHS number Wal-019

Point Lynas Lighthouse (Welsh: Goleudy Trwyn y Balog) is located on a headland in Llaneilian Community, on the north-east corner of Anglesey in North Wales (at ). A pilot station was established on the point in 1766, to guide ships entering and leaving Liverpool, with an associated lighthouse added in 1779. The present building was built on the hilltop in 1835, so does not need a tower. Built and managed by the Mersey Docks and Harbour Board, it did not come under the care of Trinity House until 1973. By 2001 the lights were fully automated, so no resident staff were needed. whilst the light is retained in operational use, the building and associated lighthouse keepers cottages were returned to the Mersey Docks and Harbour Board who sold them to be a private home and holiday accommodation.


This unusual and distinctive lighthouse was designed by Jesse Hartley, engineer to the Mersey Docks and Harbour Board from 1824 to 1860, but with additions by G Lyster some twenty years later.

It is a castellated building comprising a two-storey dwelling surmounted by a square tower 11 metres (36 ft) high. The semicircular lantern is located at the base. The present lantern is 4.6 metres (15 ft) in diameter and dates from about 1874. The lantern has a cast-iron lower wall and rectangular glazing bars take the height to 3.7 metres (12 ft). The lantern is topped by a plain conical roof with a ball finial. The square tower above has a corbelled oriel window of the pilot's look-out.

Original location

Point Lynas was first lit in 1779 at a site about 300 metres (980 ft) south of the present tower, to provide accommodation for Liverpool pilots making use of the shelter at Porthyrysgaw. The site was abandoned for the present position, so that a light could be positioned on the more important north-eastern position, where a tower is not required, as the light sits 39 metres (128 ft) above mean high water.

The lantern

Point Lynas Lighthouse - the light
Detail of the optic lens

The unusual arrangement of having the lantern at ground level with the look-out and telegraph room above is similar to the Great Orme Lighthouse, also built by the Mersey Docks and Harbour Board. The telegraph station was established in 1879, and two new cottages were erected to accommodate extra staff. Point Lynas has now been taken over by Trinity House.

A Chance Brothers occulting optic was fitted in the light room in 1878. This is 1.4 metres (4 ft 7 in) in diameter and displays a light through 206 degrees. The fixed part of the optic consists of three sections, the central unit on the focal plane has a 0.25 metres (9.8 in) deep curved lens with bands of six prisms above and below it. The bottom unit is made up of six bands of reflective prisms, while the inclined top unit contains sixteen.

The lamp is 1000W with an intensity of 112,000 candela and is white, occulting every 10 seconds, with a range of: 20 nautical miles (37 km; 23 mi)

Electrification and automation

In 1952 the station was electrified and the mechanical elements of the original light-shutter were removed. In 1948 an automatic acetylene fog-gun was installed, but was removed in 1973, when the light was transferred to Trinity House, who fitted electrical emitters. The light was automated in 1989 and is now controlled from Holyhead. As a result, the lighthouse keepers' cottages reverted to Mersey Docks and Harbour Company, who subsequently sold it to be a private family home, with the lighthouse keepers' cottages turned into holiday lets.

Historical importance

The Lighthouse is considered to be important for its association with Jesse Hartley, the engineer responsible for the world's first great floating-dock system at Liverpool

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